In a special celeb fitness issue, the Vampire Diaries star talks to Seventeen about her workout obsession (yoga) and her favorite ways to stay active and healthy! Check it out on newsstands now!

Nina's on the cover of Seventeen's special celeb fitness issue, and she's all about sharing the secret to her awesome, healthy bod! Here's what the Vampire Diaries star had to say about her no-workout workout:

"Over Christmas, I had a break, and I didn't go to the gym once, but I was in better shape than I am now, because for the first week, I was snowboarding every single day. I went skating, I went in my friend's pool, and I did everything you can possibly think of that was wintery and sporty, but I didn't feel like I was working out even once. I was just having fun."

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Sounds like an awesome (and fun!) plan. Check out the special issue, on newsstands now, for more of Nina's smart workout inspiration (hint: she's huge on yoga), and tons of other super-useful celeb workout ideas.